C01B 21/0687
After-treatment
Official title: {After-treatment, e.g. grinding, purification}
C01B21/0687 (After-treatment) appears on 56 US grants and 28 published applications in this corpus.
Search patents in C01B- Granted patents
- 56
- Published applications
- 28
- Assignees
- 40
- Inventors
- 120
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Silicon nitride powder for sintering17 Mar 2026US 12,577,107 B2Tokuyama Corporation
- Surface-modified inorganic substance, method for manufacturing same, resin composition, thermally conductive material, and device28 Apr 2020US 10,633,252 B2FUJIFILM Corporation
- Method of manufacturing a plurality of through-holes in a layer of first material19 Feb 2019US 10,207,244 B2SmartTip B.V.
- Method of manufacturing a plurality of through-holes in a layer of first material22 May 2018US 9,975,761 B2SmartTip B.V.
- Silicon nitride powder production method, silicon nitride powder, silicon nitride sintered body and circuit substrate using same21 Jul 2015US 9,085,462 B2Ube Industries, Ltd.
- Method for recycling ceramic sintered body17 Sep 2026US 2026/0274670 A1Kabushiki Kaisha Toshiba
- Antibacterial agent and method for using composition containing silicon nitride as antibacterial agent13 Aug 2026US 2026/0231949 A1Denka Company Limited
- Process for producing silicon nitride powder29 Jan 2026US 2026/0028226 A1Tokuyama Corporation
- Reversible functionalization of nanopores using an adhesion layer27 Nov 2025US 2025/0362261 A1
- Silicon nitride powder and method for producing same, and silicon nitride sintered body and method for producing same11 Sep 2025US 2025/0282688 A1Denka Company Limited
Most cited
By later US patents
- Method of manufacture of nanostructured feeds67US 6,025,034 AThe State University of New Jersey · 2000
- Process for the manufacture of friable silicon nitride bodies53US 5,061,416 ANorton Company · 1991
- Thermal spray method for the formation of nanostructured coatings51US 6,277,448 B1Rutgers, The State University of New Jersey · 2001
- Nanostructured feeds for thermal spray systems, method of manufacture, and coatings formed therefrom51US 6,579,573 B2Rutgers, The State University of New Jersey · 2003
- Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate51US 6,846,765 B2Hitachi Metals, Ltd. · 2005